[2] Sauber served as a federal prosecutor and worked with the Reagan administration for pursuing fraud in government contracts.

[2] Sauber also served as an adjunct professor at Georgetown Law School and as general counsel for Freedom House.

The United States Senate confirmed Sauber's nomination on April 29, 2021, by voice vote, and he started as general counsel on May 3, 2021.

On various occasions, Sauber declined requests from House Republicans for documents for various investigations into the Biden administration due to them not controlling committees yet.

[8] On January 14, 2023, Sauber announced more classified documents were found at President Biden's home in Wilmington, Delaware.